Bernina B 590 Service And Maintenance Manual page 26

Check: LED 3 / FPGA
Field Programmable Gate Array
-
Target state: flashes = ok - firmware has been
saved
Actual status: does not flash = firmware is not
loaded or recognized
• Reload firmware via alternative
Repair note:
• Replace PCBA-Power.
• Replace PCBA-Base.
• Replace PCBA-CPU-Module
BERNINA International AG
access
Seestrasse 161 CH-8266 Steckborn
DRAFT – VERSION
LED 4 / CPU
Central Processing Unit
(Zentrale Prozessor Einheit)
Flashes long-short = ok - processor is
working
not lit = processor does not work
• Check LED 1-2
• Replace PCBA-Power.
• Replace PCBA-Base.
• Replace PCBA-CPU-Module
Schweiz Seite 26 von 172